package jdbc;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Scanner;

public class JDBCDemo7 {
    public static void main(String[] args) {
        try(Connection connection=DBUtil.getConnection();){
            Scanner sc=new Scanner(System.in);
            System.out.println("请输入用户名：");
            String username=sc.nextLine();
            System.out.println("请输入密码：");
            String password=sc.nextLine();
            String sql="SELECT id,username,password,nickname " +
                    "FROM user " +
                    "WHERE username=? AND password=? ";
            PreparedStatement ps=connection.prepareStatement(sql);
            ps.setString(1,username);
            ps.setString(2,password);
            ResultSet rs=ps.executeQuery();
            if (rs.next()){
                System.out.println("登录成功");
            }else{
                System.out.println("登录失败");
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}
